holobiont Flashcards
holobiont
organism + symbionts
hologenome
complete set of DNA of organism + symbionts
phylosymbiosis
Perfect alignment of host evolutionary history and microbial community compositions
Holobiont theory
functions generally as a distinct biological entity anatomically, metabolically, immunologically, during development and in evolution
significant fraction of the microbiome genome together with the host genome is transmitted from one generation to the next
Genetic variation in the hologenome can be brought about by changes in the host genome as well as by changes in the microbiome genome
Holes in holobiont theory
holobiont is more effectively
viewed as an ecological community of
organisms
hologenome requires high partner fidelity
Both mutualistic and antagonistic (fitness
conflict) evolution can occur